Showing posts with label Conceptual. Show all posts
Showing posts with label Conceptual. Show all posts
Saturday, October 3, 2015
CLIP Mapping
Tuesday, September 22, 2015
Framework Flexibility - From CLAP to CLIP
As many readers may have noticed, there are some fairly significant gaps in the CLAP Framework. In the perfect world, it is really intended as a guide for how to execute Business Goals into practical IT Projects. But there may be some flexibility in the simplicity of that framework.
A colleague pointed out that maybe the missing component wasn't necessarily the Application, as those needs are covered off in the Functional Requirements. He suggested that instead the framework should consider the Information Architecture itself.
For the purposes of this framework, lets consider that data is the raw input of a process, and information is the output. Information needs to have a defined structure and each element has a distinct meaning. Consider the difference between distance an speed. Distance is a unit of measure, denoting how far something is. Speed is the distance divided by the time taken to travel the distance. Speed is the result of a process. applied to the data.
In the CLIP Framework, the notion of Information Architecture is added. It describes the processed data, its flow from system to system, and its attributes. For example, is information synchronous (live from a source) or asynchronous (delivered by a different process). Further, we see where the Requirements and Standards get applied, and how Security Requirements need to be considered through every step of the process.
Finally, we see the Validation step happens just before the solution is transitioned to Operations. It asks the question "Did the final physical solution deliver what was designed ?". Arguably, there is another validation step, which asks the question "Does the Solution Architecture satisfy all of the requirements ?".
The validation is key, as this largely waterfall process needs to map the entire solution all the way back to the original Business Activities, described in the functional & non-functional requirements. As you can see, the framework is flexible enough to be applied to many IT Goals, and not so rigid as to be unmanageable.
Tuesday, September 8, 2015
CLAP Framework for IT
Many Enterprises struggle with IT frameworks. These frameworks are meant to help turn Business strategy into executable plans. Some frameworks, such as TOGAF or Zachmann will help an Enterprise IT group understand WHAT it needs to do to achieve its goals. Other frameworks, like COBIT or ITIL will further explain HOW to achieve those goals. When an Enterprise does not follow any of the established frameworks, they will often try to devise their own. The diagram above illustrates one such framework - the "CLP" framework (the "A" was added later, after missing information was identified).

Conceptual - this stage of the framework takes the Business Activities into account. Each discrete activity can be mapped out as a few elements in a process, describing a single activity. An example might be "calculate price".
Logical - this stage maps the discrete activities required. To calculate price, we need some information from a number of sources, such as the gross price, a taxation rate, a discount and a profit margin. Further, architectural governance (standards) are applied, such as use of a Linux operating system, or mandating a particular security framework. Finally, Non-Functional Requirements (NFRs) are described, such as how quickly a system must respond or how many transactions per minute the system must satisfy.
Application - this stage is where we begin to apply some business logic about what to do with the information. It maps out what the information should be expected to look like, such as expressing numbers in Currency notation, with two decimal points of precision. It will also describe any user interfaces and other means of accessing information. It specifically maps business activities to Functional Requirements.
Physical - this final stage helps identify all of systems that are required. Items such as CPU utilization and storage requirements are calculated to determine how best to implement the system into a computing environment. It describes systems interactions in terms of protocols and transports.
This is not an exhaustive look at frameworks, and many Enterprise Architects will keenly assess missing elements from this simplistic framework. But, executed properly, a framework such as this one could be sufficient for an Enterprise to begin taking advantage of IT to realize their business strategy.
Labels:
Application,
architecture,
business,
business activities,
COBIT,
Conceptual,
enterprise,
framework,
goals,
interface,
ITIL,
Logical,
physical,
Process,
protocol,
strategy,
Technology,
TOGAF,
transport,
Zachmann
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